Truffle における JS での テスト について

2018/03/22(木) 第２回ブロックチェーン勉強会@東京でLTした資料です。TruffleにおけるJSでのテストについて簡単にまとめています。

Transcript

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4. X © DMM.com Group $ npm install -g truffle
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6. X © DMM.com Group $ truffle unbox metacoin
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8. X © DMM.com Group it("should put 10000 MetaCoin in the first account", function() { return MetaCoin.deployed().then(function(instance) { return instance.getBalance.call(accounts[0]); }).then(function(balance) { assert.equal(balance.valueOf(), 10000, "10000 wasn't in the first account"); }); }); UFTUNFUBDPJOKT
9. X © DMM.com Group function getBalance(address addr) public view returns(uint) { return balances[addr]; } .FUB$PJOTPM
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12. X © DMM.com Group function (balance) { console.log('-----------------------------------'); console.log('▼ getBalanceϝιουͷ໭Γ஋ɿunitܕ ▼'); console.log(balance); console.log('-----------------------------------'); console.log('▼ JSͰͷܕ ▼'); console.log(typeof balance); console.log('-----------------------------------'); console.log('▼ valueOf() ͰJSϓϦϛςΟϒܕΛ֬ೝ ▼'); console.log(typeof balance.valueOf()); assert.equal(balance.valueOf(), 10000, "10000 wasn't in the first account”); }); UFTUNFUBDPJOKT
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